<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<!--view层 模板-->
<div id="app" v-clock>

    <todo>
        //根据name属性选择组件插入的位置
        <todo-title slot="todo-title" :title="title"></todo-title>
        <todo-items slot="todo-items" v-for="(todoItem,index) in todoItems" :item="todoItem" :index="index" @remove="removeItems(index)"></todo-items>
    </todo>
</div>

<!--第一步，导入Vue.js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>

    //slot：插槽
    Vue.component("todo", {
        template: '<div>\
                        <slot name="todo-title"></slot>\
                        <ul>\
                            <slot name="todo-items"></slot>\
                        </ul>\
                    </div>'
    });

    Vue.component("todo-title",{
        props: ['title'],
        template: '<div>{{title}}</div>'
    });

    Vue.component("todo-items",{
        props: ['item','index'],
        //只能绑定当前组件的方法
        template: '<li>{{index}}-----{{item}} <button @click="remove">删除</button></li>',
        methods: {
            remove: function (index) {
                //this.$emit自定义事件分发
                this.$emit('remove',index);
            }
        }
    });

    var vm = new Vue({
        el:"#app",
        //Model:数据
        data:{
            title: "课程列表",
            todoItems: ["狂神说Java","狂神说前端","狂神说Linux"]
        },
        methods: {
            removeItems: function (index) {
                console.log("删除了"+this.todoItems[index]+",删除成功！");
                this.todoItems.splice(index,1);//一次删除一个元素
            }
        }
    });
</script>
</body>
</html>